Update tools/jmx submodule
Update tools/jmx submodule

* tools/jmx d6225c5...2c43d99 (2):
  > removeNode: support ignoreNodes options
  > build: replace yum with dnf

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla